Merge pull request #11642 from alalek:calib3d_chess_board_avoid_clone
authorAlexander Alekhin <alexander.a.alekhin@gmail.com>
Thu, 31 May 2018 19:17:48 +0000 (19:17 +0000)
committerAlexander Alekhin <alexander.a.alekhin@gmail.com>
Thu, 31 May 2018 19:17:48 +0000 (19:17 +0000)

Trivial merge